Answer:
The correct answer would be The chipmunk population would crash.
It can be explained with the help of carrying capacity.
The carrying capacity of a particular region refers to the number of organisms, people, or crops it can support without facing environment degradation.
If the population of chipmunks would increase up to 22 million, it would have passed the carrying capacity of the area.
Consequently, all the resources would start decreasing at a very fast rate.
After some time, the population of chipmunks would crash due to the scarcity of resources such as food.